I was so wowed by a story out of a 9-year-old boy in Mesa, Arizona, who saved his 2-year-old sister when she fell into a pool. Could you give someone CPR if needed?

Little Tristan Saghin will go about life with a new title: Hero. The 9 year old saved his baby sister when she fell into a pool recently, and he helped rescued her and performed CPR.

"My grandma came in to look for her toothpaste and said, 'Where's the baby?' And my mom went running outside and there she was floating," Tristin told ABC News affiliate ABC15.

While the adults called for help, Tristin performed chest compressions and mouth-to-mouth resuscitation on his sister. "I just went running outside again, and I did CPR on her," Tristin told ABC15. "I knew what I was doing."